Fire-extinguisher.



B. P. HALL. FIRE EXT INGUISHER.

APPLICATION FILED MAY 20 19l6.

Patented Dec. 5, 1916.

BURTON P. HALL, OF FANWOOLD, NEW JERSEY.

FIRE-EXTINGUISHER.

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neat-see.

Application filed May 20, 1916.

extinguisher in which two or more chemical reagents are brought into contact with each other by the application of a small force fron1. the outside of the container inclosing said reagents, thereby producing a gaseous pressure on the extinguishing fluid in the tank of the fire extinguisher. Third: To provide. a means for instantly sealing the tank of the fire extinguisher when gas is produced, thereby effectively preventing the leakage of the gas and the reduction of pressure due to said leakage, and to aroid the use. of stuffing boxes, bushings and similar expedients. Fourth: To have said fire ex- 'tinguisher and said tank sealing device sim- 3 0 ple, durable, inexpensive and adapted to be operated by unskilled persons. 1 attain these objects by the apparatus. illustrated in the accompanying drawings or by any mechanical equivalent or obvious modification of the same.

In the drawings. the figure is a vertical section of one form of my extinguisher.

11 is the outer container or tank. adapted to contain the fire extinguishing liquid un' der pressure of a gas. 12 is the cap or cover adapted to detachably close the said outer container or tank 11. 12 is a hub made in one with said cap 12 on the underside thereof: it has formed therein the cen- .by tinfoil 16 of which the thickness is shown as exaggerated for the sake of clearness. 12 is a boss on the upper side of said cap 12.; itencompasses the upper end of Specification of Letters Patent.

Patented neat. rare, Serial No. 98,920.

said tapered opening 25 and serves as a seat for the spring 28 and knob 21?, hereinaitter described. 13 is a suitable gasket or packing adapted to seal the mouth .of-stridcontamer or tank 11 gas tight when the-latter is closed by said cap or cover? 12. 1% is a vessel or cartridge suspended inside oi -said container 11 by means of the gland' 15. which is shown as resting .on the horizontal shoulder of said socket 16. Saidc'artridge 1.4: 15 shown as inclosing one 01 the reagents 29, such as bicarbonate" of soda, for pro ducing the gaseous pressure; the other reagent. such assulfuric acithis contained in the bottle 17., which. is shownas'resting on the pointed end of a screw 19, carried by the bottom 2-? of the open cage 24:.- Lwh-ich is" shown as connected at its upper end totthe lower edge of said socket 16', inside/rot said cartridge 14. 2% are the openings-*in said cage 24. "18 is a washer, which is shown-as resting on the upper edgeof'said bottle 17 which is shown in elevation, and on the stopper 17 which is shown ashaving its upper end flush with the upperedg'eof said bottle 17, thereby closing the" same, 22 is an eduction tube or COTlCllli'b iEOlfl theextinguishing fluid;.20 is a 'noazlei atithe upper end of said tubeu22; 21*is a doe-rid connecting said nozzle 20 to'sai'dtubc QQ, and shown as formed in:one therewithz but a separate elbow may be'einp-loyedfii de sired. 23 is a strainer at tlie lowei' eneliof said tube 22-. 25 is a tapered opening formed in the central part of said cap 12. its hub 12? and boss 12; it is adapted to-fit the tapered push rod 26; and the inclination of the taper of said opening '=2 5 and-said push rod 26 is such as to causethesaid push rod 26. when driven hoine -irlto -said opening 25, to remain in position in said-"opening 25 against a considerable endwise pres sure from within said container 11; thereby sealing the joint formed theii'ebetweenifl27 is a knob at theupper end of said push rod 26 for applying the hand thereto. whereby said push rod 26 may be driven intosaid opening 25. 28 is a compression spi ing shown as connected at its upper end" to said push rod 26 and at its lower en'd tesaid boss 12": it tends to keep said push rod 26 normally ofi said opening- 25. Theleiig-ths of said push rod 26 and otsaid'opening' :25

are such, that. when said push rOdQG is it will strike -the washer 18, thereby producing a pressure on said bottle 17 lengthwise thereof, which pressure will be concentrated at the lower end of said bottle 17.

where it rests on the pointed end of the screw 19; this will cause the bottle tobreak at its loWer end, liberating its contents, which will flowout through the openings .2? of said cage 24, and will thereby be brought into contact with the reagent 29, causing the evolution of a gas, which will pass through said openings 24 into saidcage 24, thence into said socket 16," whence the gas will pass, by rupturing the tinfoil "cover 16 of the apertures 16*, into the con- 7 tainer or tank 11, causing the extinguishing prevent the leakage of the gas under pressure.

No stuffing boxes, bushings or any similar expedients are employed. I

It is evident that my fire extinguisher may be modified a great deal within the scope of -my invention.

I .do-not, therefore, restrict myself to the details of my fire extinguisher as shown in the drawings; but I intend to include also all mechanical equivalents and, reasonably obvious modifications of the same.

What I claim 'as my invention and desire to secure byLetters Patent, is:

1. A fireextinguisher comprising a tank adapted to .contain a fire extinguishing liquid under pressure of a gas, a means for keeping two or more chemicals out of contact with each other inclosed by said tank, a tapered seat on said tank, a tapered member adapted to fit said seat, the taper of said member and said seat being so small as to cause'said member to remainin position when brought home to said seat, against the pressure of said gas, said tapered member being normally off said seat and adapted to be moved toward said seat, and means for codperating with said member to bring said chemicals into contact with each other by the motion of said member toward said seat, thereby producing said gas.

2. A fire extinguisher comprising a tank adapted to contain a fire extinguishing liquid under pressure of a gas, a means for keeping two or more chemicals out of contact with each other inclosed by said tank, a tapered opening in said tank, a tapered push rod adapted to fit said opening, the

taper of said push rod and said opening being so small as to cause said push rod to remain in position, when driven home into said opening, against the pressure of said gas, said push rod being normally off said opening and adapted to be moved into it, and means for codperating Withsaid push rod to bring said chemicals into contact with each other by the motion of said push rod into said opening, thereby producing said gas.

3. In a fire extinguisher a tank, adapted to contain a fire extinguishing liquid under pressure of'a gas, a means for keeping two or more chemicals out of contact with each other inclosed by said tank, a tapered seat on said tank, a member having a tapered surface adapted to fit said seat, the taper of said surface and said seat being so small as to cause said member to remain in positi on, when brought home to said seat, against;

the pressure of said gas, said member being normally ofi' said seat and adapted to be moved toward said seat, a means for cooperating with said member to bring said chemicals into contact with each other by the motion of said member toward said seat, thereby producing said gas, and a spring adapted to keep said member normally of! said seat and to allow the moving of said -member toward said seat.

4. In a fire extinguisher the combination of a tank adapted to contain a fire extinreceptacle, adapted to contain one or more chemicals, inclosed by said tank, a bottle, adapted to contain a suitable reagent, inclosed by said receptacle, said receptacle having one or more orifices, adapted to communicate with the inside of. said tank, a suitable covering for said orifice or orifices, adapted to prevent the ingress of said liquid into said receptacle, said covering being adapted to be ruptured by the pressure of said gas, a tapered opening in said tank, a member having a tapered surface, adapted to fit-said opening. the taper of-said surface and said opening being so small as to cause said member to remain in position when brought home into said opening, against the vpressure of said gas, said member being normally ofl said opening and adapted to be moved into it, and-means for cooperating 1,207,398 lit bottle in position, a screw passing through the bottom of said cage and abutting against the lower end of said bottle, a washer placed against the upper end of said bottle, a tapered opening in said tank opposite said washer, a tapered member adapted to fit said opening, the taper of said member and said opening being small, thereby causing said member to remain in position, when brought home into said opening, against the pressure of said gas, said member being normally off said opening and adapted to be moved into it, and to strike said washer when moved into said opening, thereby causing the lower end of said bottle to be broken, thereby bringing said reagent into contact with said chemical or chemicals, and thereby producing said gas.

6. In a fire extinguisher a tank adapted to contain a fire extinguishing liquid under pressure of a gas a means for keeping two or more chemicals out of contact with each other inclosed by said tank, a tapered seat on said tank, a member having a tapered surface adapted to fit said seat, the taper of said surface and said seat being so small as to cause said member to remain in position, when brought home to said seat, against the pressure of said gas, said member being normally off said seat and adapted to be moved toward said seat, means for cooperating with said member to bring said. chemicals into contact with each other by the motion of said member toward said seat, thereby producing said gas, and a means for keeping said member normally ofi said seat and to allow the moving of said member toward said seat.

7 In a fire extinguisher the combination of a tank, a cap on said tank, a hub on the underside of said cap, a perforated socket connected to said hub, a cartridge or shell, adapted to contain a chemical or chemicals, suspended from said socket, a cage connected to saidsocket inside of said cartridge, a screw passing through the bottom of said cage, a bottle adapted to contain another chemical supported on the end of said screw, avtapered opening in said cap and hub, a tapered push rod adapted to fit said opening, and to break said bottle, thereby bringing said chemicals together and thereby producing said gas, the taper of said opening and of said push rod being small, thereby causing the sealing of the joint between them when said push rod is driven home, and a suitable covering for the apertures of said socket, said covering being adapted to be ruptured by the pressure of said gas.

BURTON P. HALL. 

